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BS 7291-1:2010+A1:2023

BS 7291-1:2010+A1:2023

$142.49

Thermoplastics pipe and fitting systems for hot and cold water for domestic purposes and heating installations in buildings – General requirements

Published By Publication Date Number of Pages
BSI 2023 30
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PDF Catalog

PDF Pages PDF Title
4 Foreword
7 1 Scope
2 Normative references
8 3 Terms and definitions
9 4 Service conditions
Table 1 — Class “S” service conditions – domestic hot water services
10 5 Dimensions
5.1 General
11 5.2 Wall thickness of pipes
5.3 Coatings
6 Performance
6.1 Effect of materials on the quality of drinking water
6.2 Long-term hydrostatic strength of pipes
12 Table 2 — Circumferential stress values
6.3 Hydrostatic pressure resistance of assembled pipes and fittings
6.4 Resistance to thermal cycling of assembled pipes and fittings
6.5 Resistance to cyclic pressure shock of assembled pipes and fittings
6.6 Opacity
6.7 Oxygen permeability of multilayer oxygen barrier pipes
6.8 Conditions constituting a change of material
13 Table 3 — Conditions constituting a change of material
7 Intermediate layers of multilayer pipes
8 Marking and associated information
14 Figure 1 — Designation of fittings
15 Annex A (normative)  Test for minimum failure time
Table A.1 — Failure point distribution
18 Table A.2 — Percentage points of Student’s t distribution (upper 2.5% points)
19 Annex B (normative)  Method of test for hydrostatic pressure resistance of assembled pipes and fittings
20 Figure B.1 — Typical arrangement for hydrostatic pressure resistance test for fittings
21 Annex C (normative)  Method of test for resistance to thermal cycling
Table C.1 — Thermal cycling test schedule
22 Figure C.1 — Test assembly for systems based on rigid pipes
23 Figure C.2 — Test assembly for systems based on flexible pipes
24 Figure C.3 — Configuration of bent flexible pipes for thermal cycle testing
25 Annex D (normative)  Method of test for resistance to cyclic pressure shock
26 Figure D.1 — Diagram of typical equipment arrangement for cyclic pressure shock test
27 Annex E (informative)  Guidance on factory control procedures
28 Table E.1 — Applicability of requirements and test methods
29 Bibliography

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BS 7291-1:2010+A1:2023
$142.49